Finding the Fourth Proportional to 78,807.74, 108,755.03 and 42,998.54

Step by Step Solution

1. Step 1: Write the proportion equation
   78,807.74 : 108,755.03 = 42,998.54 : x
2. Step 2: Convert to fraction form
   78,807.74/108,755.03 = 42,998.54/x
3. Step 3: Cross multiply
   78,807.74x = 108,755.03 × 42,998.54
4. Step 4: Simplify right side
   78,807.74x = 4,676,307,071.38
5. Step 5: Solve for x
   x = 4,676,307,071.38/78,807.74
6. Step 6: Final answer
   x = 59,338.17